Inconel 625 alloy is a solution-strengthened nickel-based deformed superalloy with molybdenum and niobium as the main strengthening elements, which has excellent corrosion resistance and oxidation resistance, good tensile properties and fatigue properties from low temperature to 980°C, and stress corrosion resistance in salt spray atmosphere. Therefore, it can be widely used in the manufacture of aero engine parts, aerospace structural components and chemical equipment. The alloy is used in the manufacture of engine casings, guide vanes, mounting sides and barrels, fuel mains and other parts, and has passed the practical application assessment, with a maximum service temperature of 950 °C.